Trailer hitch cover



FIG. 1 is a front elevational view of a trailer hitch cover showing my new design;

FIG. 2 is a right side elevational view thereof with the left side elevational view being identical;

FIG. 3 is a top plan view thererof with the bottom plan view being identical; and,

FIG. 4 is a rear elevational view thereof. 

The ornamental design for a trailer hitch cover, as shown and described. 